SDO HMI 2011-12-08 07:58:56 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing)
(It is recommended to set high resolution on your display!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.28 | 16.61 | 0.67 | 8.76 | -17.98 | 78.31 | 8.72 | 205.01 | 0.3428 | 196.2 | 384.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-08 07:58:56 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 1.19 | 0.00 | 0.63 | -18.07 | 80.19 | 10.61 | 209.44 | 0.3575 | 787.0 | 602.6 | |
| 0.00 | 2.98 | 0.00 | 1.57 | -17.75 | 79.07 | 9.48 | 207.24 | 0.3444 | 654.0 | 704.9 | |
| 0.00 | 2.64 | 0.00 | 1.40 | -18.03 | 78.93 | 9.34 | 206.51 | 0.3474 | 702.0 | 636.8 | |
| 0.00 | 0.85 | 0.00 | 0.45 | -17.75 | 78.91 | 9.33 | 206.86 | 0.3432 | 805.0 | 563.0 | |
| 0.00 | 4.60 | 0.00 | 2.42 | -17.57 | 78.75 | 9.16 | 206.70 | 0.3393 | 878.0 | 676.8 | |
| 0.00 | 1.36 | 0.00 | 0.72 | -18.66 | 77.07 | 7.49 | 201.11 | 0.3443 | -895.0 | -683.7 | |
| 0.00 | 1.28 | 0.00 | 0.68 | -19.19 | 76.12 | 6.53 | 198.11 | 0.3472 | -858.0 | -715.9 | |
| 1.28 | 1.71 | 0.67 | 0.89 | -17.97 | 75.82 | 6.24 | 198.52 | 0.3267 | -848.3 | -826.0 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
||
| Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
| Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
| B | - Heliographic latitude B; positive: North, negative: South | |
| L | - Heliographic longitude L | |
| LCM | - Longitudinal distance from the Sun's central meridian | |
| Pos. angle | - Position angle | |
| r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
| MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
| MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. | |